Any way to have a “verbose mode” or “debug mode” with sed?
Clash Royale CLAN TAG#URR8PPP
Is there a way to make gnu sed be verbose about what is run and what is done ?
I'd like to have something like a "debug mode" so that I can see - for each line of input - the content of the hold space and pattern space before and after the script is run etc.
sed debugging gnu
edited Jan 6 at 20:14
Jeff Schaller
39.7k1054126
asked Jan 6 at 19:19
don_crisstidon_crissti
50.3k15134162
add a comment |
Is there a way to make gnu sed be verbose about what is run and what is done ?
I'd like to have something like a "debug mode" so that I can see - for each line of input - the content of the hold space and pattern space before and after the script is run etc.
sed debugging gnu
edited Jan 6 at 20:14
Jeff Schaller
39.7k1054126
asked Jan 6 at 19:19
don_crisstidon_crissti
50.3k15134162
Isl;x;l;x;at the start & end of the program adequate?
– Michael Homer
Jan 6 at 19:36
1
It looks like GNUsedgained a--debugfeature last summer (version 4.6).
– fra-san
Jan 6 at 19:56
add a comment |
Is there a way to make gnu sed be verbose about what is run and what is done ?
I'd like to have something like a "debug mode" so that I can see - for each line of input - the content of the hold space and pattern space before and after the script is run etc.
sed debugging gnu
edited Jan 6 at 20:14
Jeff Schaller
39.7k1054126
asked Jan 6 at 19:19
don_crisstidon_crissti
50.3k15134162
Is there a way to make gnu sed be verbose about what is run and what is done ?
I'd like to have something like a "debug mode" so that I can see - for each line of input - the content of the hold space and pattern space before and after the script is run etc.
sed debugging gnu
sed debugging gnu
edited Jan 6 at 20:14
Jeff Schaller
39.7k1054126
asked Jan 6 at 19:19
don_crisstidon_crissti
50.3k15134162
edited Jan 6 at 20:14
Jeff Schaller
39.7k1054126
asked Jan 6 at 19:19
don_crisstidon_crissti
50.3k15134162
edited Jan 6 at 20:14
Jeff Schaller
39.7k1054126
edited Jan 6 at 20:14
Jeff Schaller
39.7k1054126
edited Jan 6 at 20:14
Jeff Schaller
39.7k1054126
39.7k1054126
asked Jan 6 at 19:19
don_crisstidon_crissti
50.3k15134162
asked Jan 6 at 19:19
don_crisstidon_crissti
50.3k15134162
asked Jan 6 at 19:19
don_crisstidon_crissti
50.3k15134162
50.3k15134162
Isl;x;l;x;at the start & end of the program adequate?
– Michael Homer
Jan 6 at 19:36
1
It looks like GNUsedgained a--debugfeature last summer (version 4.6).
– fra-san
Jan 6 at 19:56
add a comment |
Isl;x;l;x;at the start & end of the program adequate?
– Michael Homer
Jan 6 at 19:36
1
It looks like GNUsedgained a--debugfeature last summer (version 4.6).
– fra-san
Jan 6 at 19:56
Is
l;x;l;x; at the start & end of the program adequate?– Michael Homer
Jan 6 at 19:36
Is
l;x;l;x; at the start & end of the program adequate?– Michael Homer
Jan 6 at 19:36
1
1
It looks like GNU
sed gained a --debug feature last summer (version 4.6).– fra-san
Jan 6 at 19:56
It looks like GNU
sed gained a --debug feature last summer (version 4.6).– fra-san
Jan 6 at 19:56
add a comment |
1 Answer
1
active
oldest
votes
As fra-san mentioned, GNU sed introduced a --debug option which does pretty much what you’re looking for, in version 4.6; so e.g if you run:
printf '%sn' one two | sed --debug 'H;1h;$x;$s/n/_/g'
the output is
SED PROGRAM:
H
1 h
$ x
$ s/n/_/g
INPUT: 'STDIN' line 1
PATTERN: one
COMMAND: H
HOLD: none
COMMAND: 1 h
HOLD: one
COMMAND: $ x
COMMAND: $ s/n/_/g
END-OF-CYCLE:
one
INPUT: 'STDIN' line 2
PATTERN: two
COMMAND: H
HOLD: onentwo
COMMAND: 1 h
COMMAND: $ x
PATTERN: onentwo
HOLD: two
COMMAND: $ s/n/_/g
MATCHED REGEX REGISTERS
regex[0] = 3-4 '
'
PATTERN: one_two
END-OF-CYCLE:
one_two
I don’t know what distribution you use, but it’s not available yet in Debian, Ubuntu, or Fedora; it will be included in the next releases of Debian (10) and Ubuntu (19.04).
edited Jan 6 at 22:18
don_crissti
50.3k15134162
answered Jan 6 at 22:09
Stephen KittStephen Kitt
167k24376454
add a comment |
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1 Answer
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1 Answer
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oldest
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As fra-san mentioned, GNU sed introduced a --debug option which does pretty much what you’re looking for, in version 4.6; so e.g if you run:
printf '%sn' one two | sed --debug 'H;1h;$x;$s/n/_/g'
the output is
SED PROGRAM:
H
1 h
$ x
$ s/n/_/g
INPUT: 'STDIN' line 1
PATTERN: one
COMMAND: H
HOLD: none
COMMAND: 1 h
HOLD: one
COMMAND: $ x
COMMAND: $ s/n/_/g
END-OF-CYCLE:
one
INPUT: 'STDIN' line 2
PATTERN: two
COMMAND: H
HOLD: onentwo
COMMAND: 1 h
COMMAND: $ x
PATTERN: onentwo
HOLD: two
COMMAND: $ s/n/_/g
MATCHED REGEX REGISTERS
regex[0] = 3-4 '
'
PATTERN: one_two
END-OF-CYCLE:
one_two
I don’t know what distribution you use, but it’s not available yet in Debian, Ubuntu, or Fedora; it will be included in the next releases of Debian (10) and Ubuntu (19.04).
edited Jan 6 at 22:18
don_crissti
50.3k15134162
answered Jan 6 at 22:09
Stephen KittStephen Kitt
167k24376454
add a comment |
As fra-san mentioned, GNU sed introduced a --debug option which does pretty much what you’re looking for, in version 4.6; so e.g if you run:
printf '%sn' one two | sed --debug 'H;1h;$x;$s/n/_/g'
the output is
SED PROGRAM:
H
1 h
$ x
$ s/n/_/g
INPUT: 'STDIN' line 1
PATTERN: one
COMMAND: H
HOLD: none
COMMAND: 1 h
HOLD: one
COMMAND: $ x
COMMAND: $ s/n/_/g
END-OF-CYCLE:
one
INPUT: 'STDIN' line 2
PATTERN: two
COMMAND: H
HOLD: onentwo
COMMAND: 1 h
COMMAND: $ x
PATTERN: onentwo
HOLD: two
COMMAND: $ s/n/_/g
MATCHED REGEX REGISTERS
regex[0] = 3-4 '
'
PATTERN: one_two
END-OF-CYCLE:
one_two
I don’t know what distribution you use, but it’s not available yet in Debian, Ubuntu, or Fedora; it will be included in the next releases of Debian (10) and Ubuntu (19.04).
edited Jan 6 at 22:18
don_crissti
50.3k15134162
answered Jan 6 at 22:09
Stephen KittStephen Kitt
167k24376454
add a comment |
As fra-san mentioned, GNU sed introduced a --debug option which does pretty much what you’re looking for, in version 4.6; so e.g if you run:
printf '%sn' one two | sed --debug 'H;1h;$x;$s/n/_/g'
the output is
SED PROGRAM:
H
1 h
$ x
$ s/n/_/g
INPUT: 'STDIN' line 1
PATTERN: one
COMMAND: H
HOLD: none
COMMAND: 1 h
HOLD: one
COMMAND: $ x
COMMAND: $ s/n/_/g
END-OF-CYCLE:
one
INPUT: 'STDIN' line 2
PATTERN: two
COMMAND: H
HOLD: onentwo
COMMAND: 1 h
COMMAND: $ x
PATTERN: onentwo
HOLD: two
COMMAND: $ s/n/_/g
MATCHED REGEX REGISTERS
regex[0] = 3-4 '
'
PATTERN: one_two
END-OF-CYCLE:
one_two
I don’t know what distribution you use, but it’s not available yet in Debian, Ubuntu, or Fedora; it will be included in the next releases of Debian (10) and Ubuntu (19.04).
edited Jan 6 at 22:18
don_crissti
50.3k15134162
answered Jan 6 at 22:09
Stephen KittStephen Kitt
167k24376454
As fra-san mentioned, GNU sed introduced a --debug option which does pretty much what you’re looking for, in version 4.6; so e.g if you run:
printf '%sn' one two | sed --debug 'H;1h;$x;$s/n/_/g'
the output is
SED PROGRAM:
H
1 h
$ x
$ s/n/_/g
INPUT: 'STDIN' line 1
PATTERN: one
COMMAND: H
HOLD: none
COMMAND: 1 h
HOLD: one
COMMAND: $ x
COMMAND: $ s/n/_/g
END-OF-CYCLE:
one
INPUT: 'STDIN' line 2
PATTERN: two
COMMAND: H
HOLD: onentwo
COMMAND: 1 h
COMMAND: $ x
PATTERN: onentwo
HOLD: two
COMMAND: $ s/n/_/g
MATCHED REGEX REGISTERS
regex[0] = 3-4 '
'
PATTERN: one_two
END-OF-CYCLE:
one_two
I don’t know what distribution you use, but it’s not available yet in Debian, Ubuntu, or Fedora; it will be included in the next releases of Debian (10) and Ubuntu (19.04).
edited Jan 6 at 22:18
don_crissti
50.3k15134162
answered Jan 6 at 22:09
Stephen KittStephen Kitt
167k24376454
edited Jan 6 at 22:18
don_crissti
50.3k15134162
edited Jan 6 at 22:18
don_crissti
50.3k15134162
edited Jan 6 at 22:18
don_crissti
50.3k15134162
50.3k15134162
answered Jan 6 at 22:09
Stephen KittStephen Kitt
167k24376454
answered Jan 6 at 22:09
Stephen KittStephen Kitt
167k24376454
answered Jan 6 at 22:09
Stephen KittStephen Kitt
167k24376454
167k24376454
add a comment |
add a comment |
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Is
l;x;l;x;at the start & end of the program adequate?– Michael Homer
Jan 6 at 19:36
1
It looks like GNU
sedgained a--debugfeature last summer (version 4.6).– fra-san
Jan 6 at 19:56